How to measure your arm size in inches

Written by mary jane
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How to measure your arm size in inches
Flexed arm. (arm pumping image by MAXFX from

There are many different methods you can use to measure your arm length. Choosing the correct method depends on what part of the arm is being measured and the purpose of the measurement. Measuring arm size for a shirt fitting differs from measuring the biceps. Despite the purpose, measuring your arm is an easy process and can be done in a quick and effective manner.

Skill level:

Things you need

  • Flexible measuring tape
  • Pencil
  • Paper

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    Measuring Sleeve Length

  1. 1

    Choose the arm to be measured. Bend the elbow 90 degrees and place the hand on the corresponding hip.

  2. 2

    Hold the measuring tape at the centre of the neck, right above the centre of the shoulder blades.

  3. 3

    Measure the distance from the centre of the neck to the elbow in inches. Continue measuring from the elbow to the wrist. This combined distance starting from the neck to the wrist, including the 90-degree elbow bend, is the total arm length in inches.

    Measuring Bicep Size When Flexing

  1. 1

    Extend the chosen arm fully and the wrap measuring tape around it.

  2. 2

    Make a fist while keeping the measuring tape around the arm. Flex the arm muscles, primarily the biceps and triceps, as hard as possible.

  3. 3

    Write down the measurement from the biggest peak of the upper arm in inches. This is the measurement of the flexed arm.

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